We at SBL consider ourselves to be a “Solutions” driven company rather than being a sales-oriented company. We are more keen to offer a solution to the customer rather than just run after orders. We believe in solving the problems faced by our customers with respect to the keyboard panels they use or require.
As a result of this policy, we are the First Choice for Indian as well as MNCs to develop and supply Sealed Keyboard Panels. Companies like GE Healthcare, Larsen & Toubro, Siemens, HUL, Moog Motion Controls, ECIL, Tata Power SED, Medha Servo, etc., have benefitted immensely over the last 10-15 years by developing their keyboard requirements with us.
We offer a wide range of Switch Technologies from which the customer can choose to suit their application and use. Listed below are some examples where customers have not only been able to take advantage of the technical features offered, but have also been able to reduce their Bill of Materials for these products.
About Products :
Metal Keyboards are made using stainless steel material or aluminum which makes them very tough and can be used in very harsh environments. The switch elements are embedded inside the stainless steel or aluminium due to which they are completely protected from any external abuse. Thus these are also termed as vandal proof keyboards.
Railways, Security Systems, Oil & Gas, etc.
Locomotive Controls, Access Controls, Oil Exploration Equipment, Gas/Petrol or Diesel Dispensing Machines (Petrol Pumps), etc.
There are two types of technologies that are offered in these keyboards.
Piezo Sensing Switches:
The pressure applied by the SS or Aluminium on the piezo sensor generates a voltage pulse which is sensed by an electronic circuit and used as a signal. SBL is a pioneer in developing this technology in India and has applied to patent the same.
Using a snap dome gold contact: Metal caps are placed on top of a silicon sheet which can activate the snap dome switch on a gold plated PCB. This entire assembly is embedded inside a SS plate to seal it and thus keep out dust, moisture, humidity, etc.
Metal Keyboards can be used in all types of environments especially where the equipment of keyboards are exposed to the atmosphere. The piezo sensing switches are a solid state in nature and hence can last a lifetime. These type of metal keyboards are already being used successfully in Diesel locomotives by Indian Railways for than 6 years now. Metal keyboard using a snap dome gold contact can also offer high protection and long life, besides offering a tactile feedback and backlighting. These are ideal for use in external areas and are able to withstand.
Silicon Rubber Keyboard:
These keyboards are similar to Snap Dome Switch Keyboards where the snap domes are mounted and sealed on a gold plated PCB to conduct the signals in the keyboard circuit. The main difference is that a silicon layer is used as an overlay in place of the polyester material. The snap dome can also be replaced by having a carbon contact although this would reduce the overall life of the switch.
Silicon material is extremely inert and is not affected by harsh climatic conditions or by any external materials like solvents, acids, etc. The key operating pressure can also be adjusted by changing the shore hardness of the silicon used.
Silicon can be moulded in to any shape and size as per requirements. It can also offer a variety of colours to add to the aesthetics of the keyboard. As silicon is translucent in its basic form, it can be used to make illuminated keyboards.